All 8 Wisconsin area codes
Every active code: tap any card for its full guide, who called, cities and ZIPs, map, spam patterns and local time.
Got a call from a Wisconsin number you don’t recognize?Open that code’s guide above for its full prefix lookup. AT&T ActiveArmor® blocks spam automatically, included with AT&T wireless plans.
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Why metro Milwaukee has 2 area codes
When a region uses more numbers than one code can hold, new codes are overlaid on the same territory rather than forcing anyone to change numbers. Metro Milwaukee now uses 262 and 414: same neighborhoods, ten-digit dialing, and every one of them covered by its own guide above.
Wisconsin area codes by city
The largest Wisconsin communities and the area codes that serve them. Every city links to its local AT&T internet page.
How Wisconsin got its codes
Every Wisconsin area code, in the order it entered service. Splits carved new regions; added codes overlay existing ones, which is why ten-digit dialing is standard.
| In service | Code | How it arrived |
|---|---|---|
| 1947 | 414 | One of the original area codes of 1947 |
| 1947 | 715 | One of the original area codes of 1947 |
| 1955 | 608 | Original assignment for its region |
| 1997 | 920 | Added to the 414 region |
| 1999 | 262 | Split from 414 |
| 2010 | 534 | Added to the 715 region |
| 2023 | 274 | Added to the 920 region |
| 2023 | 353 | Added to the 608 region |
Source: NANPA NPA database, July 2026. Regenerated monthly.
Wisconsin area code map
Every active Wisconsin area code at a glance, anchored to the metro each one serves. Click or tap any region on the map to open that code’s full guide.
How Wisconsin’s codes work
How Wisconsin splits
Madison runs on 608 and 353, Eau Claire on 715 and 534, and Green Bay on 920 and 274. The other two territories each carry a single code.
Overlays share one territory
An overlay serves the exact same area as the code it joins: new numbers, same map. Madison carries two (608, 353), and 274 and 534 overlay their regions the same way.
Reading the map
Each color is one code territory. The chip shows the main code with its overlays beneath it, and clicking any region opens that code’s full guide.
Every code links to a full guide.
Who called, cities and ZIPs, maps and spam patterns.
Take the map with youPoster format with every Wisconsin area code, its overlays, and a QR code back to this page.↓ Download the printable PDF
Internet, wireless & stores across the state
AT&T home internet in Wisconsin
AT&T home internet is available across Wisconsin, checked address by address; every area code guide above lists its cities and what’s offered there.
AT&T Fiber: Ltd. avail/areas. Speeds based on wired connection. Actual speeds vary. For 5-GIG, single device wired speed maximum 4.7Gbps. For more info., visit att.com/speed101.
Start with home internet in Wisconsin, or pair it with wireless in an internet + wireless bundle.
AT&T wireless in Wisconsin
AT&T’s 5G network covers most of Wisconsin. ActiveArmor® spam blocking is included with every unlimited plan, your number stays yours when you move between Wisconsin codes, and great cell phone deals in Wisconsin are a tap away.
AT&T may temporarily slow data speeds if the network is busy. 5G req’s compatible plan & device. Coverage not available everywhere. Learn more at att.com/5Gforyou.
AT&T stores across Wisconsin
From the Milwaukee metro to Eau Claire, Madison and beyond, walk in for switching, porting, upgrades and hands-on help. Every area code guide lists its nearest stores.
Find stores in: Milwaukee · Eau Claire · Madison · Brookfield · Appleton
